SJMC_DON

Why not just swap out the hd light with a number plate and put on the YZ rear fender? Then you'll have the range with the larger fuel tank....... thats what I did on my 450, looks great I run the tall foam and cover from GUTS so it gives you a flatter seat for a more aggressive riding position.

goodluckmonkey

Over here our WR46’s came with the YZ tank and seat as standard. It’s a straight swap. The YZ rear mudguard also goes straight in with no messing.

Once you’ve removed the speedo/odo the number board is relatively straightforward, as the bottom of the board just pushes into the bottom yoke. The top will need a small bracket making, as the bolt hole is in a different place. Also, the brake line has different clips on the 426, which the number board needs to be trimmed round.
I didn’t bother making a bracket, and just fixed the board to the bracket for the headlight shroud on the right hand side with a thin zip-tie.